Nearly 11.8 million individuals selected a 2018 health plan during open enrollment, based on new data from the National Academy for State Health Policy that includes all U.S. states. Plan selections in the 17 state-based marketplaces, including those that use the federal HealthCare.gov platform, rose by 0.19%, while selections in the 34 states that use the federally-facilitated marketplace fell by 5.3%.